I second demegods' request. I haven't had time to research the new zones much ( working construction is bone-numbingly tiring, especially at age 40+}. I understand, vaguely, that there are 2? starter zones, Hyjal, and some underwater area. Any details, or clarification?
I won't be playing until probably Friday night, so hopefully I'll miss the initial mad rush to the new zones, and mob camping. Of course, with my luck, Blizzard will have the servers down all week-end for extended maintenance.